SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	1,734
20	FOOD AND KINDRED PRODUCTS	3,858
28	CHEMICALS AND ALLIED PRODUCTS	3,086	224
30	RUBBER AND MISC. PLASTICS PRODUCTS	1,412	403
32	STONE, CLAY, AND GLASS PRODUCTS	307
33	PRIMARY METAL INDUSTRIES	8,597	33
35	MACHINERY, EXCEPT ELECTRICAL	345
36	ELECTRIC AND ELECTRONIC EQUIPMENT	1,108	456
37	TRANSPORTATION EQUIPMENT	1,204	178
45	TRANSPORTATION BY AIR	1,035
72	PERSONAL SERVICES	1,813
75	AUTO REPAIR, SERVICES, AND GARAGES	2,995
80	HEALTH SERVICES	16
TOTAL		27,511	1,296

*(1) By survey design, not all 2-digit SICs were surveyed. (2) The estimates for each 2-digit SIC apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC. Not all SICs were surveyed. (3) When using the estimates, standard errors associated with estimates should be considered. (4) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.